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You searched for: subject:"perturbation theory"
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[texts]Variational methods and degenerate perturbation theory - Epstein, S. T
Variational methods and degenerate perturbation theory
Keywords: DEGENERATION; EIGENVALUES; PERTURBATION THEORY; VARIATIONAL PRINCIPLES; PERTURBATION THEORY; VARIATION METHOD
Downloads: 154
[texts]Interpolative-analytical theory of the motion of ceres - Yarov-Varovoi, M. S
Interpolative analytical perturbation theory for application to construction of orbit of Ceres
Keywords: CERES ASTEROID; CONSTRUCTION; INTERPOLATION; ORBIT CALCULATION; PERTURBATION THEORY; CERES ASTEROID; INTERPOLATION; ORBIT CALCULATION; PERTURBATION THEORY
Downloads: 103
[texts]Lunar landing and long-range earth re-entry guidance by application of perturbation theory - Coate, R. E.
Application of perturbation theory to lunar landing and long range reentry guidance
Keywords: LUNAR LANDING; PERTURBATION THEORY; REENTRY GUIDANCE; LUNAR LANDING; PERTURBATION THEORY; REENTRY GUIDANCE
Downloads: 85
[texts]HEAT TRANSFER INVESTIGATIONS OF AXISYMMETRIC BODIES AT HYPERSONIC SPEEDS BY MEANS OF INFRARED MEASUREMENT - NON
A METHOD OF RAPID HEAT TRANSFER DETERMINATION OVER SURFACES OF SIMPLE HYPERSONIC MODELS AT A MACH NUMBER OF 7.0 WAS EXAMINED AND COMPARED WITH OTHER SIMILAR METHODS. THE HEAT TRANSFER MEASUREMENTS WERE PERFORMED IN A HYPERSONIC WIND TUNNEL.
Keywords: CELESTIAL MECHANICS; PERTURBATION THEORY; GRAVITATION; MATHEMATICAL MODELS; SPINOR GROUPS
Downloads: 76
[texts]Abel's generalized equation and the Cauchy kernel equation - Samko, S. G
Generalized Abel integral equation and Cauchy kernel equation
Keywords: AERODYNAMIC COEFFICIENTS; GLIDERS; LONGITUDINAL STABILITY; TOWED BODIES; LIFT; PERTURBATION THEORY
Downloads: 109
[texts]The aerodynamic-force and heat-transfer characteristics of lifting reentry bodies - Armstrong, W. O.
No Abstract Available
Keywords: PERTURBATION THEORY; VARIATIONS; ANGULAR MOMENTUM; EIGENVALUES; HAMILTONIAN FUNCTIONS; INDEPENDENT VARIABLES
Downloads: 64
[texts]Eigenfunction Expansions part 2 - E.C. Titchmarsh
E.C. Titchmarsh Eigenfunction Expansions part 2 Oxford University Press ( Clarendon Press ) 1958 Acrobat 7 Pdf 14.2 Mb. Scanned by artmisa using Canon DR2580C + flatbed option
Keywords: Mathematics; Green's Function; Parseval Formula; Perturbation Theory; Eigenvalues
Downloads: 417
[texts]Command/service module systems handbook (CSM 104) - NON
No Abstract Available
Keywords: ARTIFICIAL SATELLITES; PERTURBATION THEORY; SOLAR RADIATION; NUMERICAL ANALYSIS; RADIATION PRESSURE
Downloads: 353
[texts]Relativistic Quantum Theory part 1 - V.B. Berestetskii, E.M. Lifshitz & L.P. Pitaevskii
V.B. Berestetskii, E.M. Lifshitz & L.P. Pitaevskii Relativistic Quantum Theory ( Volume 4 part 1 of A Course of Theoretical Physics ) Pergamon Press 1971 Acrobat 7 Pdf 19.0 Mb. Scanned by artmisa using Canon DR2580C + flatbed option
Keywords: Physics; Photons; Bosons; Fermions; Scattering Matrix; Perturbation Theory; Interactions; Landau
Downloads: 2,615
[texts]Design of aircraft wheels and brake systems - Zverev, I. I.
The experience in the design and analysis of aircraft wheels and brakes, brake systems, brake control systems, and antiskid systems is summarized. The static and fatigue strength of aircraft wheels, calculation of brake service life, brake dynamics, techniques for increasing brake energy absorption capacity, and design of the basic antiskid system elements are examined.
Keywords: FLIGHT MECHANICS; ORBITAL MECHANICS; SATELLITE DESIGN; GRAVITATIONAL EFFECTS; PERTURBATION THEORY
Downloads: 1,784
[texts]Acoustic eigenvalues of a quasispherical resonator: Second order shape perturbation theory for arbitrary modes (Volume 112) - Mehl, James B.
Journal of Research of the National Institute of Standards and Technology
Keywords: acoustic cavity resonators; shape perturbation theory; acoustic eigenvalues; quasispheres
Downloads: 241
[texts]Theory of the superconductivity of a thin metal film in a strong magnetic field. II - Critical field of a superconducting film - Lei, H.-L.
Critical magnetic field calculation for superconducting thin metal films, based on perturbation theory
Keywords: MAGNETIC FIELDS; SUPERCONDUCTIVITY; THIN FILM; METAL FILMS; PERTURBATION THEORY; SUPERCONDUCTING FILMS; SUPERCONDUCTIVITY; THIN FILMS; MAGNETIC FIELD; METAL FILM; PERTURBATION THEORY
Downloads: 51
[texts]Theory of nonlinear oscillations in a collisionless plasma - Al Tshul, L. M.
Perturbation theory for nonlinear oscillations in collisionless plasma
Keywords: COLLISIONLESS PLASMAS; PERTURBATION THEORY; PLASMA OSCILLATION; LINEAR VIBRATION; NONLINEARITY; OSCILLATIONS; PERTURBATION THEORY; PLASMA OSCILLATIONS; COLLISIONLESS PLASMA; LINEAR VIBRATION; NONLINEARITY
Downloads: 126
[texts]Theory of the superconductivity of thin metal films in a strong magnetic field /I/ - Leng, H.-L.
Perturbation theory for superconductivity of thin metal films in strong magnetic fields
Keywords: MAGNETIC FIELDS; SUPERCONDUCTIVITY; THIN FILM; METAL FILMS; PERTURBATION THEORY; SUPERCONDUCTING FILMS; SUPERCONDUCTIVITY; THIN FILMS; MAGNETIC FIELD; METAL FILM; PERTURBATION THEORY
Downloads: 75
[texts]Two-dimensional unsteady flow in a traveling wave plasma accelerator - Peyret, R
Two-dimensional unsteady flow in traveling wave plasma accelerator studied using small perturbation theory
Keywords: LAPLACE TRANSFORMATION; TWO-DIMENSIONAL FLOW; UNSTEADY FLOW; PERTURBATION THEORY; PLASMA ACCELERATORS; TRAVELING WAVES; TWO DIMENSIONAL FLOW; UNSTEADY FLOW; PERTURBATION THEORY; PLASMA ACCELERATOR; TRAVELING WAVE
Downloads: 87
[texts]SEMI-ANNUAL REPORT FOR THE PERIOD JAN. 1 - JUNE 30, 1963 (RESEARCH ON THE APPLICATION OF MOLECULAR QUANTUM MECHANICS TO CALCULATIONS OF THE CHEMICAL AND PHYSICAL PROPERTIES OF MATERIALS AND THE CHEMISTRY OF THE UPPER ATMOSPHERE) - Curtiss, C. F.
Perturbation theory applied to molecular quantum mechanics - calculation of intermolecular forces & potential energy surfaces in upper atmosphere
Keywords: INTERMOLECULAR FORCES; POTENTIAL ENERGY; QUANTUM MECHANICS; UPPER ATMOSPHERE; MOLECULAR INTERACTIONS; PERTURBATION THEORY; POTENTIAL ENERGY; QUANTUM MECHANICS; UPPER ATMOSPHERE; MECHANICS (PHYSICS); MOLECULAR INTERACTION; PERTURBATION THEORY
Downloads: 117
[texts]THE EFFECT OF TRYPTOPHAN ON THE SOMATOTROPIC HORMONE DURING SLEEP IN SCHIZOPHRENICS - MURRI, L.
IT IS DETERMINED WHETHER TRYPTOPHAN ADMINISTRATION DURING SLEEP IS ABLE TO INDUCE A RELEASE OF THE SOMATOTROPIC HORMONE IN SCHIZOPHRENIC SUBJECTS.
Keywords: FOILS (MATERIALS); INCOMPRESSIBLE FLUIDS; UNSTEADY FLOW; EQUATIONS OF MOTION; HYDRODYNAMIC EQUATIONS; PERTURBATION THEORY; THIN PLATES
Downloads: 72
[movies]OHM2013: Karnei Gozman - Introduction to Quantum Perturbation
A birds eye view of the diagrammatic representation of Rayleigh-Schrödinger Perturbation Theory(RSPT), a general formula for generating perturbed calculations. plus a a brief, mostly inaccurate introduction to programing for quantum computers. Quantum computation requires a different type of calculation unlike current modern day stochastic analysis. Rayleigh-Schrödinger Perturbation Theory is a good place to start thinking about where this new computation could lead us.Program event page: htt...
Keywords: OHM2013; talk; Karnei Gozman; quantum perturbation; RSPT; Rayleigh-Schrödinger Perturbation Theory; quantum computation
Downloads: 15
[texts]The corrosion resistance of certain metallic materials for astronomical mirrors - Loretsyan, Zh. M
Corrosion resistance of aluminum magnesium alloy with chromium coating for astronomical mirrors
Keywords: ELECTRON ENERGY; PARTITIONS (MATHEMATICS); WAVE FUNCTIONS; APPROXIMATION; HAMILTONIAN FUNCTIONS; MATRICES (MATHEMATICS); PERTURBATION THEORY; TRANSFORMATIONS (MATHEMATICS)
Downloads: 69
[texts]TREATMENT OF SYSTEMIC LUPUS ERYTHEMATOSUS WITH AZATHIOPRINE - SHARON, E
A BRIEF HISTORY OF EXPERIMENTS ON THE USE OF AZATHIOPRINE IN THE TREATMENT OF PATIENTS WITH SYSTEMIC LUPUS ERYTHEMATOSUS WITH KIDNEY INVOLVEMENT HAS DEMONSTRATED AZATHIOPRINE'S EFFECTIVENESS. AZATHIOPRINE HAS TWO MAIN CHARACTERISTICS: IMMUNOLOGIC AND CYTOTOXIC DEPRESSION ACTIVITY AND ANTI-INFLAMMATION ACTIVITY. IN DOSAGES OF 2.5 MG/KG/DAY, AZATHIOPRINE IS TOLERATED WELL BY PATIENTS, PRODUCING FEW SIDE EFFECTS, POSSIBLE DEPRESSION OF THE MARROW WHICH IS EASILY REVERSIBLE, AND NO EXHIBITION OF TER...
Keywords: ARTIFICIAL SATELLITES; RADIOSONDES; TRAJECTORIES; EARTH (PLANET); PERTURBATION THEORY; SOLAR ORBITS; SUN; VELOCITY
Downloads: 115
[texts]Visual study of the effect of grazing flow on the oscillatory flow in a resonator orifice - Baumeister, K. J.
Grazing flow and oscillatory flow in an orifice were studied in a plexiglass flow channel with a single side branch Helmholtz resonator using water as the fluid medium. An oscillatory flow was applied to the resonatory cavity, and color dyes were injected in both the orifice and the grazing flow field to record the motion of the fluid. The flow regimes associated with linear and nonlinear (high sound pressure level) impedances with and without grazing flows were recorded by a high-speed motion-p...
Keywords: COMPLEX SYSTEMS; DYNAMIC STABILITY; RELIABILITY ANALYSIS; DIFFERENTIAL EQUATIONS; HIERARCHIES; LIAPUNOV FUNCTIONS; PERTURBATION THEORY
Downloads: 98
[texts]The variable polarity plasma arc welding process: Characteristics and performance - Hung, R. J.
Significant advantages of the Variable Polarity Plasma Arc (VPPA) Welding Process include faster welding, fewer repairs, less joint preparation, reduced weldment distortion, and absence of porosity. The power distribution was analyzed for an argon plasma gas flow constituting the fluid in the VPPA Welding Process. The major heat loss at the torch nozzle is convective heat transfer; in the space between the outlet of the nozzle and the workpiece; radiative heat transfer; and in the keyhole in the...
Keywords: GALERKIN METHOD; NONLINEAR SYSTEMS; PENDULUMS; PERTURBATION THEORY; RESONANT FREQUENCIES; APPROXIMATION; DEGREES OF FREEDOM; OSCILLATORS
Downloads: 255
[texts]NASA/DoD Aerospace Knowledge Diffusion Research Project. Paper 29: The US government technical report and the transfer of federally funded aerospace R and D - Pinelli, Thomas E.
This article discusses the U.S. government technical report and the transfer of federally funded aerospace research and development in a conceptual framework of the federal government as a producer of scientific and technical information. The article summarizes current literature and research and discusses U.S. government technical report use and the importance of using data obtained from the NASA/DoD Aerospace Knowledge Diffusion Research Project...
Keywords: CONTROL STABILITY; CONTROLLERS; COST ANALYSIS; MATHEMATICAL MODELS; ROBUSTNESS (MATHEMATICS); APPROXIMATION; PERTURBATION THEORY
Downloads: 58
[texts]Hot stars: Six years of progress - Garmany, C. D
Mass loss is known to take place across the H-R diagram, but nowhere is it more pronounced than in the upper left hand corner. Here, winds from luminous stars peel away a solar mass in a million years or less. The winds of the OF, OB supergiants, and W-R stars have received the most attention because they are so readily studied. Their effect on stellar evolution is significant also. On the other hand, it is the B stars whose variability was most thoroughly studied with IUE, undoubtedly because h...
Keywords: ABLATION; RESONANCE; ABRASION; COSMIC RAYS; FRAGMENTATION; HEAVY IONS; MATRIX THEORY; ANGULAR DISTRIBUTION; FEYNMAN DIAGRAMS; PERTURBATION THEORY
Downloads: 92
[texts]EFFECT OF NITROGEN ON THE ELASTOMECHANICAL PROPERTIES OF AUSTENITIC CHROMIUM-NICKEL STEELS - LADDACH, H.
IN AN AUSTENITIC STEEL (20% NI, 20% CR), ADDITION OF 0.29% NITROGEN INCREASES THE MODULI OF ELASTICITY AND SHEAR. DAMPING BEHAVIOR OF THE STEEL CONTAINING NITROGEN DIFFERS IN THE SOLUTION-ANNEALED AND AGE-HARDENED STATES. DAMPING IS INCREASED BY INTERSTITIAL NITROGEN. PRECIPITATION DURING BRIEF AGE HARDENING AT 800 C CAUSES AN ANOMALY IN DAMPING AT 300 C AND A SHIFT IN THE DAMPING CURVE ABOVE 500 C...
Keywords: FLIGHT MECHANICS; INTERPLANETARY FLIGHT; PLANETS; NATURAL SATELLITES; ORBITAL MECHANICS; PERTURBATION THEORY; SPACE EXPLORATION
Downloads: 67
[texts]Shuttle airbreathing propulsion - Glassman, A. J.
Requirements analysis of airbreathing gas turbine engines for shuttle vehicles
Keywords: DELTA FUNCTION; FREDHOLM EQUATIONS; IONS; MATHEMATICAL MODELS; PROBLEM SOLVING; ELECTRONS; HELIUM; INTEGRAL EQUATIONS; PERTURBATION THEORY
Downloads: 64
[texts]Hot wire liquid level detector for cryogenic fluids Patent - Olsen, W. A., Jr
Hot-wire liquid level detector for cryogenic propellants
Keywords: FUEL SYSTEMS; PERTURBATION THEORY; ROCKET THRUST; TRAJECTORY OPTIMIZATION; TRAJECTORY ANALYSIS; TRAJECTORY CONTROL
Downloads: 144
[texts]Solution of minimum problems of the airfoil theory - Nickel, Kar
No Abstract Available
Keywords: ADIABATIC CONDITIONS; PARTICLE INTERACTIONS; PERTURBATION THEORY; QUANTUM MECHANICS; HAMILTONIAN FUNCTIONS; RELATIVISTIC PARTICLES
Downloads: 85
[texts]Scientific publications and presentations relating to planetary quarantine. Volume 5 - The 1969 supplement - Bradley, F. D.
Bibliography on planetary quarantine
Keywords: GAS DYNAMICS; LIQUID FLOW; PRESSURE PULSES; UNSTEADY FLOW; DIMENSIONAL ANALYSIS; INTEGRAL EQUATIONS; LINEARITY; PERTURBATION THEORY
Downloads: 160
[texts]CANDIDE - Overall plan for possible developments of linkage of the CETIS analog and digital computers - Riotte, A
No Abstract Available
Keywords: EARTH IONOSPHERE; ELECTROSTATIC CHARGE; FIELD STRENGTH; ROCKET FLIGHT; MAGNETIC MEASUREMENT; MEASURING INSTRUMENTS; PERTURBATION THEORY
Downloads: 68
[texts]Current Single Event Effects Results for Candidate Spacecraft Electronics for NASA - OBryan, Martha V.
We present data on the vulnerability of a variety of candidate spacecraft electronics to proton and heavy ion induced single event effects. Devices tested include digital, analog, linear bipolar, and hybrid devices, among others.
Keywords: LOW EARTH ORBITS; LIBRATION; FORMATION FLYING; RETROGRADE ORBITS; PERTURBATION THEORY; LAUNCHING
Downloads: 166
[texts]Deformation lamellae in quartz - Short, N. M
No Abstract Available
Keywords: ARTIFICIAL SATELLITES; PERTURBATION THEORY; ANGULAR DISTRIBUTION; DIFFERENTIAL EQUATIONS; EQUATIONS OF MOTION; INDEPENDENT VARIABLES; ITERATION
Downloads: 91
[texts]Quantum Mechanics - L.D. Landau & E.M. Lifshitz
L.D. Landau & E.M. Lifshitz Quantum Mechanics ( Volume 3 of A Course of Theoretical Physics ) Pergamon Press 1965 Acrobat 7 Pdf 28.6 Mb. Scanned by artmisa using Canon DR2580C + flatbed option
Keywords: Physics; Schrodinger's Equation; Angular Momentum; Perturbation Theory; Spin; Nuclear Structure; Collisions; Symmetry; Atom
Downloads: 11,004
[texts]Indirect method of determining air flow through inside channel and gas temperature in front of double flow turbine - Pervyshin, N. V., et al
Indirect method of determining air flow through inside channel and gas temperature in front of double flow turbine
Keywords: CELESTIAL MECHANICS; RELATIVISTIC EFFECTS; SATELLITE ORBITS; ARTIFICIAL SATELLITES; EQUATIONS OF MOTION; PERTURBATION THEORY
Downloads: 98
[texts]Apollo operations handbook. Command and service module (spacecraft 012) - NON
No Abstract Available
Keywords: ARTIFICIAL SATELLITES; GRAVITATIONAL FIELDS; PLANETARY ROTATION; SATELLITE PERTURBATION; ORBIT PERTURBATION; PERTURBATION THEORY; ROTATING SPHERES
Downloads: 721
[texts]Particulate electron beam weld emission hazards in space - Bunton, Patrick H
The electron-beam welding process is well adapted to function in the environment of space. The Soviets were the first to demonstrate welding in space in the mid-1980's. Under the auspices of the International Space Welding Experiment (ISWE), an on-orbit test of a Ukrainian designed electron-beam welder (the Universal Hand Tool or 'UHT') is scheduled for October of 1997. The potential for sustained presence in space with the development of the international space station raises the possibility of...
Keywords: PERTURBATION THEORY; APPROXIMATION; DIRAC EQUATION; TRANSITION PROBABILITIES; QUANTUM THEORY; THEOREM PROVING
Downloads: 95
[texts]Quantum Mechanics - Hylton Clark
Hylton Clark Quantum Mechanics Van Nostrand Reinhold Company Ltd. 1974 Acrobat 7 Pdf 8.17 Mb. Scanned by artmisa using Canon DR2580C + flatbed option
Keywords: Physics; Classical Dynamics; Quantum Theory; Schrodinger Equation; Matrix; Approximate Methods; Perturbation Theory; Group Theory; Dirac Equation
Downloads: 1,319
[texts]Zero leakage design for ducts and tube connections for deep space travel. Volume 6 - X connector feasibility studies Final report, 5 Jul. 1963 - 30 Jun. 1967 - Bain, J. A
Production design feasibility of half inch X-connector for 4500 psi service
Keywords: FLIGHT MECHANICS; PERTURBATION THEORY; SPACECRAFT GUIDANCE; TRAJECTORY OPTIMIZATION; MISSION PLANNING; OBLATE SPHEROIDS; ORBIT PERTURBATION; RADIATION PRESSURE
Downloads: 133
[texts]Shock processing of interstellar grains - Seab, C. G.
Shock processing plays an important role in the life of a typical interstellar grain. Shocks of 100 km/s-l or greater can destroy about 50% of the grain material under appropriate preshock conditions of density and magnetic field. The destruction occurs by grain-grain collisions and nonthermal sputtering for steady state radiative shocks and by thermal sputtering for fast adiabatic shocks. The evaluation of the lifetime of grains against shock destruction depends on models of the interstellar me...
Keywords: BOUNDARY CONDITIONS; COMPRESSIBLE FLOW; FLAT PLATES; NAVIER-STOKES EQUATION; PERTURBATION THEORY; CONVERGENCE; LAMINAR FLOW; REYNOLDS NUMBER; STEADY STATE
Downloads: 50
[texts]Flight investigation at low angles of attack to determine the longitudinal stability and control characteristics of a cruciform canard missile configuration with a low-aspect-ratio wing and blunt nose at Mach numbers from 1.2 to 2.1 - Brown, C. A., Jr
No Abstract Available
Keywords: DIFFERENTIAL EQUATIONS; SELF ADAPTIVE CONTROL SYSTEMS; STATISTICAL MECHANICS; MATHEMATICAL MODELS; PERTURBATION THEORY; PROBABILITY DENSITY FUNCTIONS; PROBABILITY DISTRIBUTION FUNCTIONS
Downloads: 59
[texts]THE COMPOSITION AND PRESSURES OF GASES IN OCCLUSIONS OF CERTAIN TEKTITES AND SILICA GLASSES - DOLGOV, Y. A.
A STUDY OF TEKTITE, EXAMINING THE COMPOSITION AND PRESSURE OF GASES IN OCCLUSIONS OF BEDIASITE, DARWINIAN, AND LIBYAN GLASSES IS PRESENTED. CONCLUSION AS TO THE ORIGIN OF THE GASES IS BASED ON THE DIFFERING COMPOSITIONS OF THE GASES AND BASE MINERALS, ON THE EVIDENT VISCOSITY OF THE MELT OR RE-MELT STAGES, AND ON THE PRESSURE OF THE GASES IN THE OCCLUSIONS.
Keywords: EARTH GRAVITATION; PERTURBATION THEORY; GEODESY; GRADIENTS; GRAVIMETRY; GRAVITY ANOMALIES; BOUNDARY CONDITIONS; BOUNDARY VALUE PROBLEMS; CURVATURE; INTEGRAL EQUATIONS
Downloads: 98
[texts]RADIO BRIDGE - ''EARTH-MOON-EARTH'' - DEMIDOV, V. YE
SPACE COMMUNICATIONS SYSTEM FOR EARTH MOON RADIO LINK
Keywords: PERTURBATION THEORY; PLANETARY MASS; PLUTO (PLANET); SOLAR ORBITS; CELESTIAL MECHANICS; DISTURBING FUNCTIONS; ORBIT PERTURBATION; ORBITAL ELEMENTS; TABLES (DATA)
Downloads: 98
[texts]Cavitation Performance of 84 Deg Helical Pump Inducer Operated in 37 Deg and 42 Deg R Liquid Hydrogen - Ball, C. L.
Cavitation performance of 84 deg helical pump inducer operated in 37 deg and 42 deg R liquid hydrogen
Keywords: DECAY; WAVE FUNCTIONS; NONRELATIVISTIC MECHANICS; QUANTUM MECHANICS; SCATTERING; CONTINUUMS; GREEN'S FUNCTIONS; PERTURBATION THEORY; S MATRIX THEORY; SCHROEDINGER EQUATION
Downloads: 76
[texts]Development of Miniature Electromechanical Pressure Sensor Arrays (MEMPSA) for High Resolution Thermospheric and Mesospheric Neutral Wind Measurements - White, Robert C
This report documents progress made in the first six months on NASA contract NASW-5034. The goal of this project is to: (1) fabricate microelectromechanical systems (MEMS) based components as highly sensitive pressure transducers and (2) incorporate those transducers into a prototype instrument for the measurement of thermospheric and mesospheric neutral winds. The MEMS based components are tunnel displacement transducers (TDT's)...
Keywords: HELIOSPHERE; PERTURBATION THEORY; BOUNDARIES; GALACTIC COSMIC RAYS; SIZE DETERMINATION; VOYAGER 2 SPACECRAFT; PIONEER 10 SPACE PROBE; IMP
Downloads: 83
[texts]Synthesis of organic compounds by the action of electric discharges in simulated primitive atmospheres - Allen, W.
Synthesis of organic compounds by electric discharges in simulated primitive atmospheres
Keywords: BOUNDARY VALUE PROBLEMS; DIFFERENTIAL EQUATIONS; ERROR ANALYSIS; FINITE DIFFERENCE THEORY; STRUCTURAL ANALYSIS; PERTURBATION THEORY; STRESS ANALYSIS; STRUCTURAL ENGINEERING; TAYLOR SERIES
Downloads: 91
[texts]Sensitivity Studies for Space-based Measurement of Atmospheric Total Column Carbon Dioxide Using Reflected Sunlight - Mao, Jianping
A series of sensitivity studies is carried out to explore the feasibility of space-based global carbon dioxide (CO2) measurements for global and regional carbon cycle studies. The detection method uses absorption of reflected sunlight in the CO2 vibration-rotation band at 1.58 microns. The sensitivities of the detected radiances are calculated using the line-by-line model (LBLRTM), implemented with the DISORT (Discrete Ordinates Radiative Transfer) model to include atmospheric scattering in this...
Keywords: AUTOMATIC CONTROL; COMPILERS; NETWORK SYNTHESIS; COMPUTER SYSTEMS PROGRAMS; ASSEMBLY LANGUAGE; COMMAND LANGUAGES; APPLICATIONS PROGRAMS (COMPUTERS); PERTURBATION THEORY
Downloads: 58
[texts]A STUDY ON THE COMMON AMPLIFICATION OF PM PULSES BY A DOUBLE LADDER TYPE MILLIMETER WAVE TRAVELING WAVE TUBE - TSUCHIYA, S.
AN EXPERIMENTAL AND THEORETICAL STUDY OF TRAVELING WAVES IS PRESENTED FOR BROAD-BAND APPLICATION. THE PULSE IS ASSUMED TO BE EITHER A SQUARE OR A GAUSSIAN PM PULSE WITH GAUSSIAN BAND DISTRIBUTION. COMMON AMPLIFICATION CHARACTERISTICS FOR A ONE AND TWO CYCLE WAVE ARE STUDIED THEORETICALLY AND RESULTS OF EXPERIMENTS ARE VERIFIED FOR THE SQUARE PM PULSE. IT IS FOUND THE TW TUBES ARE MOST PROMISING FOR HIGH-SPEED PCM MILLIMETER BAND COMMUNICATIONS...
Keywords: AIRCRAFT PERFORMANCE; BODY-WING CONFIGURATIONS; PERFORMANCE PREDICTION; PERTURBATION THEORY; SIDESLIP; ANGLE OF ATTACK; LIFTING BODIES; NUMERICAL ANALYSIS
Downloads: 72
[texts]The Deep Space Network - NON
Deep Space Network progress in flight project support, tracking and data acquisition, research and technology, network engineering, hardware and software implementation, and operations is cited. Topics covered include: tracking and ground based navigation; spacecraft/ground communication; station control and operations technology; ground communications; and deep space stations.
Keywords: CELESTIAL MECHANICS; PERTURBATION THEORY; CLASSICAL MECHANICS; SOLAR ORBITS; SPACE MECHANICS; EDUCATION; EQUATIONS OF MOTION; MANY BODY PROBLEM; MOON; NUMERICAL ANALYSIS
Downloads: 230
[texts]Theoretical Study of Fe(CO)n- - Ricca, Alessandra
The structures and CO binding energies are computed for Fe(CO)n- using a hybrid density functional theory (DFT) approach. The structures and ground states can be explained in terms of maximizing the Fe to CO 2pi donation and minimizing Fe-CO 5 sigma repulsion. The trends in the CO binding energies for Fe(CO)n- and the differences between the trends for Fe(CO)n- and Fe(CO)n are also explained. For Fe(CO)n-, the second, third, and fourth CO bonding energies are in good agreement with experiment, w...
Keywords: BOW WAVES; SHOCK WAVES; MAGNETOHYDRODYNAMICS; EARTH MAGNETOSPHERE; MACH NUMBER; PERTURBATION THEORY; MATHEMATICAL MODELS; MAGNETOHYDRODYNAMIC WAVES; RANKINE-HUGONIOT RELATION
Downloads: 79
[texts]SPACE RESEARCH IN THE UKRAINE. PART 2: SPACE MECHANICS AND CONTROL SYSTEMS - NON
ARTICLES ARE PRESENTED ON URGENT PROBLEMS IN SPACE MECHANICS AND THE CONTROL OF SPACE OBJECTS. PROBLEMS OF OSCILLATIONS, STABILITY, AND STABILIZATION OF FLIGHT CRAFT ARE DISCUSSED ALONG WITH TRAJECTORY PROBLEMS OF THE INJECTION OF SPACECRAFT INTO ORBITS. PROBLEMS OF THE ORBITAL ATTITUDE CHANGE OF SIMILAR ARTIFICIAL EARTH SATELLITES (AES), ORIENTATION OF SPACE FLIGHT CRAFT, AND THE AERODYNAMICS OF AES ARE ALSO DISCUSSED.
Keywords: CHARGED PARTICLES; VACUUM; PERTURBATION THEORY; RADIATION; THEORETICAL PHYSICS; BRAGG ANGLE; DENSITY (MASS/VOLUME); HILL METHOD; PANELS; SANDWICH STRUCTURES
Downloads: 157
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